Add last_modified field to both stree and study tables
started support for exporting lists of modified strees/studies
Merge branch 'master' into timestamps
work with parsing time/date formats - in progress
Merge branch 'master' into timestamps
Make sure changes in timestamp aren't broken by more recent changes to master
query implemented, service seems to work for both trees and studies - needs testing, review of where last_modified is set'
added logic to check upload times as well as edit times, correcting the former for best guess utc
added uploaded datetime and utc correction logic for studies
add tree edit check to changed study list, add some comments
remove utc stuff, local time is good enough
Update timestamps to check for conflicts
Merge branch 'master' into timestamps
resolve merge difficulties with master
add timestamping to the otu mapping editor, trigger tree updates when contraining studies are modified (because otu mappings affect trees files)
Merge pull request #31 from OpenTreeOfLife/timestamps

Timestamps